PERFORMANCE-DRIVEN DEVELOPMENT

Discover the Ultimate Guide to React Native Optimization

All you need to know about React Native optimization in one place

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What is waiting for you inside?

20 chapters filled with the most relevant tips, tricks, tactics, and unique expertise that will help you tackle performance issues of your React Native app.

What will you learn from the Guide?

You will learn the best practices for optimizing Stability, Performance, Resource usage, User experience, Maintenance costs, Time to market, and much more!

What topics are covered in the Guide?

We cover three main groups of topics: 

  1. Improve performance by understanding React Native implementation details
  2. Improve performance by using the latest React Native features
  3. How to ship quicker with a stable environment
Discover the Ultimate Guide to React Native Optimization
PERFORMANCE-DRIVEN DEVELOPMENT
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Ultimate Guide to React Native Optimization
PERFORMANCE-DRIVEN DEVELOPMENT
About

The Guide is a must-read for developers looking to work on app performance

The Ultimate Guide to React Native Optimization contains of:

#20
chapters
#214
pages
#20
graphs
#50
code examples
1.29G
Monthly Active Users globally – WeChat
29M
Monthly Active Users in Indonesia – Gojek
350M
Monthly Active Users in India – PayTM
114M
Monthly Active Users in globally – MoMo
49%
will switch to alternative digital service
38%
will tell others about their negative experience
43%
will contact the digital service for help
32%
will abandon or delete the digital experience
#1
Organizational agility
#2
Time to market
#3
Apps maintenance
#4
UX experience

testimonials

What do the experts say about the Guide to React Native Optimization?

Animate at 60 FPS no matter what

"By adding delightful animations to your app, users tend to be muchmore forgiving. If done carefully, animations in React Native canperform great and improve the perceived performance of the app to theuser."

William Candillon
Chief Technology Officer at 28msec

Avoid unused native dependencies

"There are so many tricky parts to making a great native app, and to lower the barrier to entry, React Native can abstract away things that you might want to come back and check on later once you’ve got your app up and running – this ebook does a solid job of helping you understand how to really get from good to great."

Orta Therox
CocoaPods creator, TypeScript core contributor

Make your app consistently fast

"Performance regression monitoring is a critical process in the development and maintenance of mobile apps. Without it, small issues can go unnoticed and lead to significant performance degradation, negatively impacting the user experience and potentially decreasing user retention. Regular performance regression monitoring allows developers to proactively identify and fix issues before they become a problem for users, ensuring the app runs at optimal performance and providing a better experience for all users."

Michał Chudziak
Independent Consultant @michalchudziak.dev

Christoph Nakazawa

"By testing key features of an app via integration testing, developers can effectively identify and eliminate potential bugs, ultimately leading to a more confident and efficient development process."

Christoph Nakazawa
Senior Engineering Manager & Creator of Jest

Animate at 60 FPS no matter what

"By adding delightful animations to your app, users tend to be muchmore forgiving. If done carefully, animations in React Native canperform great and improve the perceived performance of the app to theuser."

William Candillon
Chief Technology Officer at 28msec

Avoid unused native dependencies

"There are so many tricky parts to making a great native app, and to lower the barrier to entry, React Native can abstract away things that you might want to come back and check on later once you’ve got your app up and running – this ebook does a solid job of helping you understand how to really get from good to great."

Orta Therox
CocoaPods creator, TypeScript core contributor

Make your app consistently fast

"Performance regression monitoring is a critical process in the development and maintenance of mobile apps. Without it, small issues can go unnoticed and lead to significant performance degradation, negatively impacting the user experience and potentially decreasing user retention. Regular performance regression monitoring allows developers to proactively identify and fix issues before they become a problem for users, ensuring the app runs at optimal performance and providing a better experience for all users."

Michał Chudziak
Independent Consultant @michalchudziak.dev

Run tests for key pieces of your app

"By testing key features of an app via integration testing, developers can effectively identify and eliminate potential bugs, ultimately leading to a more confident and efficient development process."

Christoph Nakazawa
Senior Engineering Manager & Creator of Jest

Super App Case Study

We worked with MoMo

MoMo is a Vietnamese e-wallet super app with more than 114M users. To learn more about the benefits of using React Native to develop super apps, check out the MoMo case study. Where we helped improve app's performance by migrating architecture to Re.Pack.

summary

How This Guide Is Organized

Optimizing the React Native app is a complex process where you need to take various aspects into account – from implementation through using the latest React Native features to testing and continuous deployment.
This guide is a comprehensive source of tactics, tricks, tips, tools, and best practices to help you deliver an optimized React Native app. We not only focus on the technological aspects of React Native optimization. We also underline the impact of each technological aspect on business continuity. This guide contains best practices for optimizing:

  • Stability
  • Performance
  • Resource page
  • User experience
  • Maintenance costs
  • Time-to-market

All these aforementioned aspects have a particular impact on the revenue-generating effectiveness of your apps. Such elements as stability, performance, and resource usage are directly related to improving the ROI of your products because of their positive impact on the user experience. With a faster time-to-market, you can stay ahead of your competitors, whereas an easier and quicker maintenance process will help you reduce your spending on that particular process.

This guide is divided into three parts:

The first part is about improving performance through understanding the React Native implementation details and knowing how to maximize them. This part covers the following topics:

  • Pay attention to UI re-renders
  • Use dedicated components for certain layouts
  • Think twice before you pick an external library
  • Always remember to use libraries dedicated to the mobile platform
  • Find the balance between native and JavaScript
  • Animate at 60FPS - no matter what
  • Replace Lottie with Rive
  • Optimize your app’s JavaScript bundle

The second part is about improving performance by using the latest React Native features or turning some of them on. This part describes the following topics:

  • Always run the latest React Native version to access the latest features
  • How to debug faster and better with Flipper
  • Avoid unused native dependencies
  • Optimize your Android application startup time with Hermes
  • Optimize your Android application’s size with Gradle setting
  • Experiment with the New Architecture of React Native

The third part is about enhancing the stability of the application by investing in testing and continuous deployment. This part tackles the following topics:

  • Run tests for key pieces of your app
  • Have a working Continuous Integration (CI) in place
  • Don’t be afraid to ship fast with Continuous Deployment
  • Ship OTA (Over-the-Air) in an emergency
  • Know how to profile iOS
  • Know how to profile Android

The structure of each section looks like this:

Issue: The first part describes the main problem with React Native performance. 
Solution: The second part outlines how that problem may affect your business and what the best practices are to solve it.
Benefits: The third part focuses on the business benefits of our proposed solution.

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